Improvement in wrenches



L. r. SMITH.

Wrench,es. y N.l47,699. P.atentedFeb.17.1a74. Y

Witnesses Harn/sys.

5* Frio.

LEVI F. SMITH, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN WRENCHES.

Specification forming part ofLetters Patent No. 141699, dated February17, 1874; application filed June 6, 1873.

To all whom it may concern:

Be it known that I, LEVI F. SMITH, of Phila delphia, in the county ofPhiladelphia and :in the State of Pennsylvania, have invented certainnew and useful Improvements in Trench 5 and do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings and to the letters or' referencemarked thereon, making a part of this specification.

The nature of my invention consists in the construction and arrangementof certain at tachnients to wrenches, as Will be hereinafter more fullyset forth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the Figure l is a perspectiveview of a monkey- Wrench, showing, at the side ot' it, a pipe-euttingattachment; and Figs. 2 and 3 show other attachments for the wrench.

A represents the stationary jaw, with shank B and handle C, of anordinary monkey-Wrench. l) represents the movable jaw of the same. Allof these parts may be constructed in any ot' the known and usual Ways.In the inner side of the stationary jaw A is made an oblong recess, a,with a hole, i, through each ivall for the passage of a pin, b. Thisrecess and holes are made for the purpose of receiving differentattachments to make a pipe-Wrench or a pipe cutter, as desired. Grepresents a plate, of the same size as that part of the stationary jawwhich projects beyond the shank B. 0n one side of this plate Gr isformed a block, E, to tit snugly in the recess a of the stationary jawA,

the edges of the plate being close-up to and against the jaw. Throughthe block E is made a hole, corresponding Withv the holes t' t' in thejaw, so that, when the pin b is inserted, said pin will hold the blockand plate firmly in the jaw, or they may be held by a screw, it'desired. On the face or outer side of the plate G may then be formedV alongitudinal cutter, H, Which, so to say, converts the Wrench into apipeeutter; or, on the face of the plate Gr` may be made a number ofteeth, d d, as shown in Fig. 2, which makes it a pipe-Wrench, forscrewing up and unscrewing pipes. Then neither of these attachments isused, a simple plate and block, as shown in Fig. 3, should be inserted,and held by the pin b, so as to prevent any injury to the Walls of therecess in the jaw A.

It will, of course, be understood that these attachments may be used onthe movable jaw ot' a wrench equally as Well as on the station ary jaw,though I prefer the latter.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

The combination of the jaw A with recess a and openings it'. and theperforated block E With surface Gr and the connecting-pin b, allconstructed as and for the purposes herein set forth.

In testimony that I claim the foregoing I have hereunto set-my hand this5th day of Julie, 1873.

LEVI F. SMITH.

Vitnesses:

A. N. MARR, C. L. Evitar.

